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An airplane is sent on a rescue mission to help a stranded explorer near the South Pole. The plane cannot land, but instead drops a supply package of mass m = 58 kg while it is flying horizontally with a speed of vp = 116 m/s. The supply package drops onto a waiting sled that is initially at rest. After the package lands in the sled, the speed of the sled plus package is found to be 38 m/s. What is the mass of the sled?
Assume that 36% of the body of a person floating in the Dead Sea will be above the water line, Find the density of the water in the Dead Sea
a popular entertainment at some carnivals is the blanket toss.a if a person is thrown to a maximum height of 28.0ft
if a drage car had a constant acceleration throughout a quarter mile (402 m) race, what would be the top speed reached
A 255 g oscillator has a speed of 93.0 cm/s when its displacement is 3.90 cm and 74.5 cm/s when its displacement is 6.00 cm
The filament of anincandescent lightbulb is a thin tungsten wire. Suppose a lightbulbhas a resistance of 42 Ω at room temperature. During normal operation, the filament reaches atemperature of about 2990 K.
Speedboat A negotiates a curve whose radius is 118 m. Speedboat B negotiates a curve whose radius is 270 m. Each boat experiences the equivalent centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
It leaves the track horizontally, flies through the air, and subsequently strikes the ground. Elucidate the speed v of the block when it leaves the track?
Find out the relative rates at which clocks go at two different distances r1 and r2 from the center of the earth.
a submarine dives to a depth of 302 feet in the ocean. what is the force in pounds acting on a hatch that has an area
a worker drags a crate across a factory floor by pulling on a rope tied to the crate. the worker exerts a force of
A particle has a de Broglie wavelength of 2.7x10-10 m. Then its kinetic energy doubles. What is the particle's new de Broglie wavelength, assuming that relativistic effects can be ignored
An osprey's call is a distinct whistle at 2200Hz. An osprey calls while diving at you, to drive you away from her nest. You hear the call at 2300 Hz. How fast is the osprey approaching
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